全文获取类型
收费全文 | 3033篇 |
免费 | 497篇 |
专业分类
各国政治 | 470篇 |
工人农民 | 142篇 |
世界政治 | 308篇 |
外交国际关系 | 169篇 |
法律 | 1363篇 |
中国政治 | 79篇 |
政治理论 | 965篇 |
综合类 | 34篇 |
出版年
2023年 | 13篇 |
2022年 | 11篇 |
2021年 | 43篇 |
2020年 | 73篇 |
2019年 | 198篇 |
2018年 | 153篇 |
2017年 | 183篇 |
2016年 | 205篇 |
2015年 | 167篇 |
2014年 | 164篇 |
2013年 | 731篇 |
2012年 | 134篇 |
2011年 | 133篇 |
2010年 | 148篇 |
2009年 | 88篇 |
2008年 | 119篇 |
2007年 | 92篇 |
2006年 | 80篇 |
2005年 | 65篇 |
2004年 | 61篇 |
2003年 | 50篇 |
2002年 | 49篇 |
2001年 | 39篇 |
2000年 | 45篇 |
1999年 | 38篇 |
1998年 | 20篇 |
1997年 | 31篇 |
1996年 | 25篇 |
1995年 | 28篇 |
1994年 | 27篇 |
1993年 | 30篇 |
1992年 | 28篇 |
1991年 | 26篇 |
1990年 | 22篇 |
1989年 | 14篇 |
1988年 | 16篇 |
1987年 | 13篇 |
1986年 | 18篇 |
1985年 | 16篇 |
1984年 | 16篇 |
1983年 | 17篇 |
1982年 | 8篇 |
1981年 | 18篇 |
1980年 | 9篇 |
1979年 | 8篇 |
1978年 | 14篇 |
1977年 | 8篇 |
1976年 | 4篇 |
1974年 | 6篇 |
1967年 | 5篇 |
排序方式: 共有3530条查询结果,搜索用时 15 毫秒
91.
ONLY GOOD FENCES KEEP GOOD NEIGHBOURS! THE INSTITUTIONALIZATION OF MINISTRY–AGENCY RELATIONSHIPS AT THE SCIENCE–POLICY NEXUS IN GERMAN FOOD SAFETY POLICY 下载免费PDF全文
This article makes a further contribution to opening the ‘black box’ of micropractices in ministry–agency relationships. We argue that the mechanisms that come into play in the course of institutionalizing agencification reforms – such as renegotiating mutual roles and rules in ministry–agency interactions – are only poorly covered in the existing literature. To adequately address the negotiated and contingent nature of de facto agency autonomy and political control, we develop an interpretive approach based on the concept of ‘boundary work’. The empirical focus is on ministry–agency interactions at the science–policy nexus in the contested policy field of food safety. By studying actors' stories about the institutionalization processes following the fundamental reorganization of the German food safety administration in the wake of the BSE crisis from a longitudinal perspective, we show how actors manage boundary conflicts via increasingly differentiated backstage coordination. 相似文献
92.
Scholars' criticism of transparency in public–private partnerships (PPPs) often focuses on ‘external’ transparency, that is, the extent to which internal information is visible to the outside world. However, to achieve external transparency, internal transparency – the availability and inferability of information for the public procurer and the private party – is crucial. In this article we analyse input, process, and output transparency from three different perspectives (institutional, cognitive, and strategic) in four PPPs in the Netherlands. We conclude that input transparency is high, but process and output transparency less so. Moreover, output transparency has gained importance in PPPs. Whether this is problematic depends on the PPPs' institutional environment. In some partnerships the desired output is uncontested and predetermined by clear standards in the institutional environment, whereas other PPPs deal with contested output norms, decreasing the partnerships' transparency. These results nuance the current debate on the lack of transparency in PPPs. 相似文献
93.
94.
95.
David Córdova Seth J. Schwartz Jennifer B. Unger Lourdes Baezconde-Garbanati Juan A. Villamar Daniel W. Soto Sabrina E. Des Rosiers Tae Kyoung Lee Alan Meca Miguel Ángel Cano Elma I. Lorenzo-Blanco Assaf Oshri Christopher P. Salas-Wright Brandy Piña-Watson Andrea J. Romero 《Journal of youth and adolescence》2016,45(10):2164-2177
96.
97.
98.
Indigenous peoples’ right to prior consultation and to informed consent represents the basis of the new global model shaping state–indigenous relations. Consultation processes promise to enable indigenous people to determine their own development and are especially promoted when extraction projects with significant socio-environmental impacts are planned on indigenous lands. In this article we draw on debates on participatory development in order to analyse the first state-led consultations in Bolivia’s and Peru’s hydrocarbon sectors (2007–14). The analysis shows that effective participation has been limited by (1) an absence of indigenous ownership of the processes; (2) indigenous groups’ difficulties defending or even articulating their own visions and demands; and (3) limited or very general outcomes. The study identifies real-life challenges, such as power asymmetries, a ‘communication hurdle’ and appropriate timing – as well as simplistic assumptions underlying the consultation approach – that account for the unfulfilled promises of this new model. 相似文献
99.
Minji Lee M.S. Ju Yeon Jung M.S. Sungsoo Choi M.S. Ilung Seol Ph.D. Seohyun Moon Ph.D. In Kwan Hwang Ph.D. 《Journal of forensic sciences》2020,65(6):2117-2120
Lophophora is a member of the Cactaceae family, which contains two species: Lophophora williamsii and L. diffusa. Lophophora williamsii is an illegal plant containing mescaline, a hallucinogenic alkaloid. In this study, a novel method based on a single nucleotide polymorphism (SNP) assay was developed for identifying L. williamsii; this assay reliably detects SNPs within chloroplast DNA (rbcL, matK, and trnL-trnF IGS) and was validated for identifying Lophophora and L. williamsii simultaneously. The chloroplast DNA sequences from four L. williamsii and three L. diffusa plants were obtained and compared using DNA sequence data from approximately 300 other Cactaceae species available in GenBank. From this sequence data, a total of seven SNPs were determined to be suitable for identifying L. williamsii. A multiplex assay was constructed using the ABI PRISM® SNaPshot™ Multiplex Kit (Applied Biosystems, Forster City, CA) to analyze species-specific SNPs. Using this multiplex assay, we clearly distinguished the Lophophora among 19 species in the Cactaceae family. Additionally, L. williamsii was distinguished from L. diffusa. These results suggest that the newly developed assay may help resolve crimes related to illegal distribution and use. This multiplex assay will be useful for the genetic identification of L. williamsii and can complement conventional methods of detecting mescaline. 相似文献
100.
Patrick Megan E. Rhew Isaac C. Duckworth Jennifer C. Lewis Melissa A. Abdallah Devon Alisa Lee Christine M. 《Journal of youth and adolescence》2020,49(4):869-880
Journal of Youth and Adolescence - Young adults experience social role transitions across multiple life domains, and a deeper understanding of the ways in which these simultaneous transition... 相似文献